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253308033 = 3311852889
BaseRepresentation
bin11110001100100…
…10110010000001
3122122122101022000
433012102302001
51004321324113
641045134213
76164040246
oct1706226201
9578571260
10253308033
1111aa93090
12709ba369
1340630314
14258db5cd
1517389373
hexf192c81

253308033 has 16 divisors (see below), whose sum is σ = 409387200. Its totient is φ = 153519840.

The previous prime is 253308023. The next prime is 253308053. The reversal of 253308033 is 330803352.

It is a happy number.

It is not a de Polignac number, because 253308033 - 24 = 253308017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 253307988 and 253308006.

It is not an unprimeable number, because it can be changed into a prime (253308023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426148 + ... + 426741.

It is an arithmetic number, because the mean of its divisors is an integer number (25586700).

Almost surely, 2253308033 is an apocalyptic number.

It is an amenable number.

253308033 is a deficient number, since it is larger than the sum of its proper divisors (156079167).

253308033 is a wasteful number, since it uses less digits than its factorization.

253308033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852909 (or 852903 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 253308033 is about 15915.6537094773. The cubic root of 253308033 is about 632.7269323754.

The spelling of 253308033 in words is "two hundred fifty-three million, three hundred eight thousand, thirty-three".

Divisors: 1 3 9 11 27 33 99 297 852889 2558667 7676001 9381779 23028003 28145337 84436011 253308033